Packet #39456343 Success
NODEINFO_APP packet from VE3LJU2_base (LJU2) to !ffffffff
45
Total Receptions
1
Unique Gateways
2
Hop Count
79
Payload Bytes
Packet Information
| Database ID: | 39456343 |
|---|---|
| Mesh Packet ID: |
0xff276390
Used for correlation across gateways |
| Timestamp: | 2026-05-16 05:55:28 UTC |
| From Node: | VE3LJU2_base (LJU2) |
| To Node: | !ffffffff (ffff) |
| Success: | Processed |
| Protocol: |
NODEINFO_APP
Port: 4 |
| Gateway: | AH001 (0d74) |
|---|---|
| Channel: | LongFast |
| RSSI: | -121 dBm |
| SNR: | -14.75 dBm |
| Hop Info: |
2/5 hops
Start: 5, Limit: 3 |
| Relay Node: |
7c
PBSE
Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions |
Payload Data
Protocol: NODEINFO_APP
Size: 79 bytes
Decoded:
Yes
Decoded Data:
| Long Name: | VE3LJU2_base |
|---|---|
| Short Name: | LJU2 |
| Node ID: | !0ac9e854 |
| MAC Address: | 6PYKyehU |
| Hardware: | HELTEC_V4 |
Raw Packet Analysis
Complete field breakdown and MQTT privacy/exposure analysisPacket Structure
MQTT Packet Flow:
ServiceEnvelope (MQTT layer) → MeshPacket (Mesh layer) → Decoded Payload (Application data)
| Total Size: | 79 bytes |
|---|---|
| Gateway: | !b03d0d74 |
| Channel: | LongFast |
| Payload Type: | NODEINFO_APP |
| Hop Count: | 2 / 5 |
Privacy Summary
Exposure Level:
Broadcast
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...
MQTT ServiceEnvelope Fields
MQTT ServiceEnvelope contains the MeshPacket plus routing metadata
| Field | Value |
|---|---|
gateway_id |
!b03d0d74
Node ID format |
channel_id |
LongFast
Default public channel |
packet |
MeshPacket (79 bytes)
Contains the actual mesh network packet |
MeshPacket Fields
Core mesh packet with routing and payload information
| Field | Value | Type |
|---|---|---|
from |
181004372
Source node ID |
uint32 |
to |
4294967295 (Broadcast)
Visible to all nodes |
uint32 |
decoded.portnum |
4
NODEINFO_APP |
enum |
decoded.payload_length |
79 bytes
|
size |
hop_limit |
3
Remaining hops allowed |
uint32 |
hop_start |
5
Initial hop limit |
uint32 |
hops_taken |
2
Calculated: hop_start - hop_limit |
derived |
rx_rssi |
-121.0 dBm
Signal strength at gateway |
int32 |
rx_snr |
-14.75 dB
Signal quality at gateway |
float |
rx_time |
1778910928
Receive timestamp |
fixed32 |
via_mqtt |
False
Direct LoRa transmission |
bool |
want_ack |
False
No ACK requested |
bool |
priority |
Not set | enum |
delayed |
Not set | enum |
channel |
Not set | uint32 |
pki_encrypted |
False
Standard encryption |
bool |
next_hop |
Not set | uint32 |
relay_node |
124
Relay node ID |
uint32 |
tx_after |
Not set | uint32 |
timestamp |
1778910928.9537318
Unix timestamp |
uint32 |
MQTT Privacy & Exposure Analysis
Analysis of privacy features and exposure risks when packet is shared via MQTT
Exposure Level: Broadcast
Privacy Features:
- ✓ Direct LoRa transmission (not via MQTT)
- ✓ Gateway node ID tracked
Exposure Risks:
- ⚠ Visible to all nodes on channel
- ⚠ Default channel - no encryption
- ⚠ Packet visible to MQTT subscribers
- ⚠ Multi-hop path visible (2 hops)
- ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
| Gateway ID: | !b03d0d74 |
| Signal Metrics: |
RSSI: -121.0 dBm SNR: -14.75 dB |
Complete Payload Analysis
Detailed breakdown of all payload fields and decoded data
Payload Metadata:
| Protocol: | NODEINFO_APP |
|---|---|
| Size: | 79 bytes |
| Decoded: | Yes |
Complete Payload Data (JSON):
{
"id": "!0ac9e854",
"long_name": "VE3LJU2_base",
"short_name": "LJU2",
"macaddr": "6PYKyehU",
"hw_model": "HELTEC_V4"
}
Complete Protobuf Decode (JSON)
{
"service_envelope": {
"gateway_id": "!b03d0d74",
"channel_id": "LongFast",
"packet": "MeshPacket (see mesh_packet below)"
},
"mesh_packet": {
"from": 181004372,
"to": 4294967295,
"id": 4280771472,
"rx_time": 1778910928,
"rx_snr": -14.75,
"rx_rssi": -121,
"hop_limit": 3,
"hop_start": 5,
"via_mqtt": false,
"want_ack": false,
"priority": 0,
"delayed": 0,
"channel_index": null,
"pki_encrypted": false,
"next_hop": 0,
"relay_node": 124,
"tx_after": 0,
"decoded": {
"portnum": 4,
"payload": "0a09213061633965383534120c5645334c4a55325f626173651a044c4a55322206e8f60ac9e854286e380c4220ad71b1a03a8963e0cf2c3b621fd4b1e08bcf93532bbcf03c7148c0c79c083f444800",
"want_response": null,
"dest": null,
"source": null,
"request_id": null,
"reply_id": null,
"emoji": null,
"parsed_payload": {
"id": "!0ac9e854",
"long_name": "VE3LJU2_base",
"short_name": "LJU2",
"macaddr": "6PYKyehU",
"hw_model": "HELTEC_V4",
"role": "CLIENT_BASE",
"public_key": "rXGxoDqJY+DPLDtiH9Sx4IvPk1MrvPA8cUjAx5wIP0Q=",
"is_unmessagable": false,
"type": "protobuf",
"portnum": "NODEINFO_APP",
"message_class": "User"
}
}
}
}
Raw Packet Data (79 bytes)
0a09213061633965383534120c5645334c4a55325f626173651a044c4a55322206e8f60ac9e854286e380c4220ad71b1a03a8963e0cf2c3b621fd4b1e08bcf93532bbcf03c7148c0c79c083f444800
Hex Analysis:
| Size: | 79 bytes |
|---|---|
| Format: | Protobuf (Protocol Buffers) |
| Encoding: | Binary with varint and length-delimited fields |
This is the raw protobuf-encoded payload as received from MQTT.
The structure follows the Meshtastic protobuf schema definitions.
All Receptions
All gateways that received this packetCorrelation: Using Mesh Packet ID
Reception Locations
Loading...
Loading reception map...
Map shows gateway locations that received this packet. Hop counts are displayed if available.
| Gateway | Time Offset | RSSI | SNR | Hops | Relay | Channel | Timestamp | Actions |
|---|---|---|---|---|---|---|---|---|
| AH001 (0d74) Primary |
0.000s
Reference |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
LongFast | 2026-05-16 05:55:28 UTC | Current |
| AH001 (0d74) |
-0.071s
Before |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
LongFast | 2026-05-16 05:55:28 UTC | View |
| AH001 (0d74) |
-0.047s
Before |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
LongFast | 2026-05-16 05:55:28 UTC | View |
| AH001 (0d74) |
-0.023s
Before |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
LongFast | 2026-05-16 05:55:28 UTC | View |
| AH001 (0d74) |
+0.021s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
LongFast | 2026-05-16 05:55:28 UTC | View |
| AH001 (0d74) |
+0.044s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
LongFast | 2026-05-16 05:55:28 UTC | View |
| AH001 (0d74) |
+0.065s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
LongFast | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.086s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
LongFast | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.107s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
LongFast | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.128s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
LongFast | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.151s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
LongFast | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.174s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
MediumFast | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.197s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
MediumFast | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.220s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
MediumFast | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.240s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
MediumFast | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.261s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
MediumFast | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.282s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
MediumFast | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.303s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
MediumFast | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.327s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
MediumFast | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.352s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
MediumFast | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.376s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
MediumFast | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.400s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
MediumFast | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.421s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
ShortFast | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.442s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
ShortFast | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.463s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
ShortFast | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.484s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
ShortFast | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.508s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
ShortFast | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.532s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
ShortFast | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.555s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
ShortFast | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.578s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
ShortFast | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.600s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
ShortFast | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.621s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
ShortFast | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.643s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
ShortFast | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.664s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
ShortTurbo | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.688s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
ShortTurbo | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.713s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
ShortTurbo | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.736s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
ShortTurbo | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.759s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
ShortTurbo | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.781s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
ShortTurbo | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.802s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
ShortTurbo | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.823s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
ShortTurbo | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.844s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
ShortTurbo | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.868s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
ShortTurbo | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.892s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
ShortTurbo | 2026-05-16 05:55:29 UTC | View |
| AH001 (0d74) |
+0.915s
After |
-121.0 dBm | -14.75 dB | 2 |
7c
PBSE
|
LongFast | 2026-05-16 05:55:29 UTC | View |
45
Total Receptions
1
Unique Gateways